Historical clue formulations

• Reroute — 2026-04-16
• Scuba ___ — 2023-09-24
• One studying coral composition, say — 2023-06-17
• Reef explorer — 2016-08-10
• Examiner of sunken ships, perhaps — 2012-02-14
• One going under — 2012-01-26
• Summer Olympics athlete — 2011-05-05
• Springboard performer — 2005-10-11
• Navy Seal, e.g. — 2004-11-09
• One who works under pressure — 2001-06-06
• School visitor? — 1996-06-08